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This is the free Material Data Center Datasheet of Ultraform® N2770 K AT - POM - BASF

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Processing/Physical Characteristics - Mechanical properties - Thermal properties - Electrical properties - Other properties - Processing Recommendation Injection Molding
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Product Texts
Injection molding grade with enhanced wear behavior for sliding parts.

Abbreviated designation according to ISO 1043-1: POM
Designation according to ISO 29988-POM-K,,M-GNRS2,3-2
Processing/Physical CharacteristicsValueUnitTest Standard
ISO Data
Melt volume-flow rate, MVR 7.5 cm³/10min ISO 1133
Temperature 190 °C -
Load 2.16 kg -
Molding shrinkage, parallel 2.1 % ISO 294-4, 2577
Molding shrinkage, normal 2.1 % ISO 294-4, 2577
Mechanical propertiesValueUnitTest Standard
ISO Data
Tensile Modulus 2700 MPa ISO 527
Yield stress 61 MPa ISO 527
Yield strain 9.5 % ISO 527
Nominal strain at break 26 % ISO 527
Tensile creep modulus, 1000h 1400 MPa ISO 899-1
Charpy impact strength, +23°C 100 kJ/m² ISO 179/1eU
Charpy impact strength, -30°C 100 kJ/m² ISO 179/1eU
Charpy notched impact strength, +23°C 5 kJ/m² ISO 179/1eA
Charpy notched impact strength, -30°C 4 kJ/m² ISO 179/1eA
Thermal propertiesValueUnitTest Standard
ISO Data
Melting temperature, 10°C/min 166 °C ISO 11357-1/-3
Temp. of deflection under load, 1.80 MPa 90 °C ISO 75-1/-2
Coeff. of linear therm. expansion, parallel 110 E-6/K ISO 11359-1/-2
Burning Behav. at 1.5 mm nom. thickn. HB class IEC 60695-11-10
Electrical propertiesValueUnitTest Standard
ISO Data
Relative permittivity, 1MHz 3.8 - IEC 62631-2-1
Dissipation factor, 1MHz 50 E-4 IEC 62631-2-1
Volume resistivity 1E13 Ohm*m IEC 62631-3-1
Surface resistivity 1E13 Ohm IEC 62631-3-2
Comparative tracking index 600 - IEC 60112
Other propertiesValueUnitTest Standard
Water absorption 0.9 % Sim. to ISO 62
Humidity absorption 0.2 % Sim. to ISO 62
Density 1430 kg/m³ ISO 1183
Processing Recommendation Injection MoldingValueUnitTest Standard
Pre-drying - Temperature 100 - 110 °C -
Pre-drying - Time 3 h -
Processing humidity ≤0.2 % -
Melt temperature 190 - 230 °C -
Mold temperature 60 - 120 °C -
Characteristics
Processing
Injection Molding
Features
Tribologic Grade, Copolymer
Other text information
Injection molding
PROCESSING
injection molding, Melt temperature, range: 190 - 230 °C
injection molding, Mold temperature, range: 60 - 120 °C

Processing

Usual single-flighted three-section screws with an effective screw length of at least 15 D, better 20 - 23 D are suitable for the injection molding of Ultraform.

Pretreatment

Granules or pellets in original packaging can be processed without any special pretreatment. Granules or pellets which have become moist due to prolonged or incorrect storage (e.g. by formation of condensed water) must be dried in dehumidifying or recirculating air dryers for approx. 3 hours at about 100 - 110 °C. The moisture content should not exceed 0.2 %.


Postprocessing

If parts were produced at a comparatively low mold temperature (e.g. in order to obtain short cycle times) and must not change their geometry in use thermal postprocessing inducing dimensional changes by postcrystallization may be necessary. In such cases parts should be stored in an oven with recirculated air at temperatures of 100 - 130 °C until dimensions don't change significantly any further. The time needed for this has to be determined experimentally.
Disclaimer
Copyright Altair Engineering GmbH. Altair Engineering GmbH assumes no liability for the system to be free of errors. The user takes sole responsibility for the use of this data under the exclusion of every liability from Altair Engineering GmbH; this is especially valid for claims of compensation resulting from consequential damages. Altair explicitly points out that any decision about the application of materials must be double checked with the producer of this material. This includes all contents of this system. Copyright laws are applicable for the content of this system.
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